Pith Number

pith:MZ4HSCHS

pith:2010:MZ4HSCHSA6F7YE2OBFDFWSQKKO

not attested not anchored not stored refs pending

Minimum and maximum against k lies

Ji\v{r}\'i Matou\v{s}ek, Michael Hoffmann, Philipp Zumstein, Yoshio Okamoto

arxiv:1002.0562 v1 · 2010-02-02 · cs.DS · cs.CC · cs.GT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MZ4HSCHSA6F7YE2OBFDFWSQKKO}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:09:20.765556Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66787908f2078bfc134e09465b4a0a53bde04c0e9dfa03213c0ba14255b3243c

Aliases

arxiv: 1002.0562 · arxiv_version: 1002.0562v1 · doi: 10.48550/arxiv.1002.0562 · pith_short_12: MZ4HSCHSA6F7 · pith_short_16: MZ4HSCHSA6F7YE2O · pith_short_8: MZ4HSCHS

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/MZ4HSCHSA6F7YE2OBFDFWSQKKO \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 66787908f2078bfc134e09465b4a0a53bde04c0e9dfa03213c0ba14255b3243c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af0ab5eb8ef7ab111b85750a76278abe2e1e761939a0f592eb8bf135a3d35e05",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2010-02-02T18:54:35Z",
    "title_canon_sha256": "9651cea7ec839c6e4440f1b06081aa8ead812f23522a1a1024ac20cd65609d29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.0562",
    "kind": "arxiv",
    "version": 1
  }
}